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LP4054H Folha de dados(PDF) 1 Page - Lowpower Semiconductor inc |
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LP4054H Folha de dados(HTML) 1 Page - Lowpower Semiconductor inc |
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1 / 8 page  LP4054H-00 Aug.-2018 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 1 of 8 Preliminary Datasheet LP4054H 600mA Standalone Linear Li-Ion Battery Charger General Description The LP4054H is a complete constant-current/constant- voltage linear charger for single cell lithium-ion batteries. Its SOT23-5 package and low external component count make the LP4054H ideally suited for portable applications. Furthermore, the LP4054H is specifically designed to work within USB power specifications. No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The LP4054H automatically terminates the charge cycle when the charge current drops to 1.5/10th the programmed value after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed, the LP4054H automatically enters a low current state, dropping the battery drain current to less than 1µA. Other features include charge current monitor, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage. Order Information LP4054H □ □ □ F :Pb-Free Package Type B5:SOT23-5 B6:SOT23-6 Applications Portable Media Players/MP3 players Cellular and Smart mobile phone PDA/DSC Bluetooth Applications Features Programmable Charge Current Up to 600mA No MOSFET, Sense Resistor or Blocking Diode Required Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating 4.2V Charge Voltage with ± 1% Accuracy Charge Current Monitor Output for Gas Gauging Automatic Recharge 3V Trickle Charge Threshold Charging OTP Package in SOT23-5/SOT23-6 Typical Application Circuit ISET STAT2 VBAT STAT1 Battery CBAT 10uF VIN RSET 2K GND CIN 10uF VIN 1Ω Marking Information Part Marking Package Shipping LP4054HB5F LP4054 HYWX SOT23-5 3K/REEL LP4054HB6F LP4054 HYWX SOT23-6 3K/REEL Marking indication: Y:Production year W:Production week X:Production batch. |
Nº de peça semelhante - LP4054H |
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Descrição semelhante - LP4054H |
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